Old Estes Parts, Part 2

Here's that same BT-30 (from a post a few day's back) with a nose cone a fin unit.

   

The plastic fin unit was re-purposed from those used in fireworks. 

The fit over the end of the BT-30 tube is very good.

The fin unit and nose cone are listed in the 1960 Estes catalog. The fins used in the Sky Bird and Dirty Bird designs.

An illustration for both parts is in the second 1961 catalog: CLICK HERE

The nose cone shoulder slips over the body tube edge. This is another fireworks piece.

These plastic parts were phased out as balsa equivalents replaced them. The manufacturer's probably didn't want to associate with any ties to fireworks.

Thanks again to Lonnie Buchanon for lending me these parts.